Rihanna and MAC have partnered to bring you the brand new RiRi [Hearts] MAC Collection.

The four collections, to be known as RiRi [Hearts] MAC, will break throughout 2013, and current plans call for 31 stockkeeping units. In another first, MAC is calling Rihanna, who turns 25 years old today, a “creative partner” rather than a collaborator. Her name will appear on the packaging, and her signature will be embossed on the RiRi Woo lipstick case and on the bullets of the summer lipsticks, as well as several of the fall and holiday pieces.

The first product to launch is a cute lipstick called RiRi Woo, which is inspired by MAC’s existing red Ruby Woo. It will be released coinciding with Rihanna’s Diamonds Tour on May 4th and 5th.

RiRi Woo will be sold at the Rihanna concerts and online, and a summer collection will follow, which will also be sold online. A third will land in brick-and-mortar stores for fall, and there will be an on-counter holiday collection.

The signature piece of the lineup, RiRi Woo, will be sold with all four collections. The summer collection also includes two additional lipsticks, a Lustre Drops shade and a powder blush duo. Fall’s 16 sku’s include four lipsticks, a deeply pigmented Lipglass version of RiRi Woo, two multishade eye shadow palettes and false lashes. (“She likes to wear two pairs at a time,” said Jennifer Balbier, MAC’s senior vice president of global product development, in an aside.) Holiday will bring another 10 items, including nail polish, a makeup bag and additional lipsticks.

Get all the details about the Rihanna x MAC collaboration via Women’s Wear Daily by clicking here.